- Popular Article2010Climate change, first-handTeacher Plus, May-June, 74-76
- Newsletter2010Sarusscape: A rich tapestryThe ICF Bugle 35(1): 1-2
- Popular Article2009Death on the highwayThe Hindu Survey of the Environment 2009: 113-118.
Read here: http://blog.ncf-india.org/2009/10/10/death-on-the-highway/
- Journal Article2009Restoring rainforest fragments: survival of mixed-native species seedlings under contrasting site conditions in the Western Ghats, India.Restoration Ecology 17: 137-147.Download
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Historical fragmentation and a current annual deforestation rate of 1.2% in the Western Ghats biodiversity hotspot have resulted in a human-dominated landscape of plantations, agriculture, and developed areas, with embedded rainforest fragments that form biodiversity refuges and animal corridors. On private lands in the Anamalai hills, India, we established restoration sites within three rainforest fragments (5, 19, and 100 ha) representing varying levels of degradation such as open meadow, highly degraded sites with dense Lantana camara invasion, abandoned exotic tree plantations (Eucalyptus grandis and Maesopsis eminii), and sites with mixed-native and exotic tree canopy. Between 2000 and 2004, we planted annually during the southwest monsoon 7,538 nursery raised seedlings of around 127 species in nine sites (0.15–1.0 ha). Seedlings monitored at 6-monthly intervals showed higher mortality over the dry season than the wet season and survival rates over a 2-year period of between 34.4 and 90.3% under different site conditions. Seedling survival was higher in sites with complete weed removal as against partial removal along planting lines and higher in open meadow and under shade than in sites that earlier had dense weed invasion. Of 44 species examined, survival across sites after 24 months for a majority of species (27 species, 61.4%) was higher than 50%. Retaining regenerating native species during weed clearing operations was crucial for rapid reestablishment of a first layer of canopy to shade out weeds and enhance survival of shade-tolerant rainforest seedlings.
- Art & Literary2009Who gives a fig?The Hindu Magazine, 26 July 2009, page 5.
Trees are being slaughtered in large numbers in the face of urbanisation. A reflective piece on what is happening to our landscapes from a conservation perspective.
- Journal Article2009First underwater sighting and preliminary behavioural observations of Dugongs(Dugong dugon) in the wild from Indian waters, Andaman Islands.Journal of Threatened Taxa 1 (1): 49-53.
- Newsletter2009The future of the dugongs in the Indian sub-continentSirenews, Newsletter of the IUCN Sirenia Specialist Group, Vol. No. 52.
- Popular Article2009Musician of the monsoonThe Hindu Magazine, 6 September 2009, page 5.
The Malabar Whistling Thrush is a flautist of unbridled creativity but, given the wanton destruction of its habitat, how much longer will we hear its music?
- Popular Article2009In troubled watersHindustan Times, 21st January
- Journal Article2009Endangered markhor Capra falconeri in India: through war and insurgencyOryx 43(3): 407-411Download
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The flare horned markhor Capra falconeri occurs in northern Pakistan, Afghanistan, India, Uzbekistan and Tajikistan. Most of the species’ range is along volatile international borders and limited information is available, especially for the population of the Pir Panjal or Kashmir markhor C. f. falconeri in India. From October 2004 to April 2005 we therefore conducted the first range-wide survey of the species in India since independence. The markhor's range has shrunk from c. 300 km2 in the late 1940s to c. 120 km2 in 2004–2005. Our surveys and interviews with key local informants indicate that 350–375 markhor may yet exist in the region. All the populations are small (usually < 50) and fragmented. International conflicts, developmental projects, the needs of an increasing human population and poaching, along with lack of awareness, are the primary threats to the species. The largest population in India, in Kajinag, may have potential for long-term survival if immediate conservation measures can be implemented.
- Popular Article2009Welcome back,warblersThe Hindu Magazine, 1 November 2009, page 5.
- Journal Article2009Are rice paddies suboptimal breeding habitat for Sarus Cranes in Uttar Pradesh, India?The Condor 111: 611-623
The globally threatened Sarus Crane (Grus antigone) has low annual productivity and occurs mostly in landscapes dominated by agriculture; it is therefore vulnerable to extinction caused by human-related disturbance and mortality. The Sarus Crane’s increased use of rice paddies as breeding habitat has fueled concerns that the species is being forced to use suboptimal habitats. To assess the issue, I studied nest-site selection and quantified nest and brood survival of Sarus Cranes in Uttar Pradesh, northern India, during 2000 and 2001 and evaluated differences between natural wetlands and rice paddies. The cranes preferred wetlands as nesting habitat at the levels of both the landscape and individual territory. The success (daily survival rate) of nests closer to roads was lower, suggesting that human-related mortality played a role. The effect of habitat on nest successwas equivocal, suggesting that rice fields per se are not suboptimal as nesting sites. This result is unique to this area, suggesting that favorable attitudes of farmers still allow Sarus Cranes to nest in rice paddies. Broods hatching later and those in territories with fewer wetlands had a lower probability of survival. Vegetation changes and disturbance during crop harvesting likely decreased brood survival. Maintaining a patchwork of shallow wetlands in rice-dominated landscapes and ensuring that farmers retain a positive attitude toward the species are crucial for survival of Sarus Crane nests and broods.
- Dataset2009Data from: Brewing trouble: coffee invasion in relation to edges and forest structure in tropical rainforest fragments of the Western Ghats, India. Biological InvasionsDryad Digital Repository. doi: 10.5061/dryad.588k7
- Dataset2009Western Ghats Hornbill SurveyIndia Biodiversity Portal, Western Ghats bird transect layer http://indiabiodiversity.org/layer_info.php?layer_name=lyr_235_wg_birdtransects
Data from Western Ghats Hornbills and endemic bird survey contributed to India Biodiversity Portal
Available here: http://indiabiodiversity.org/layer_info.php?layer_name=lyr_235_wg_birdtransects
- Popular Article2009Act before it is too lateThe Telegraph (Calcutta), 13 August 2009
- Popular Article2009Hope burns bright for state’s tigersDeccan Herald, 3 November 2009
- Journal Article2009Brewing trouble: coffee invasion in relation to edges and forest structure in tropical rainforest fragments of the Western Ghats, IndiaBiological Invasions 11: 2387–2400
While the conservation impacts of invasive plant species on tropical biodiversity is widely recognised, little is known of the potential for cultivated crops turning invasive in tropical forest regions. In the Western Ghats biodiversity hotspot, India, fragmented rainforests often adjoin coffee plantations. This study in the Anamalai hills assessed the effects of distance from edges and forest structure on the occurrence and abundance of shade-tolerant coffee (Arabica Coffea arabica and Robusta C. canephora) in four fragments (32–200 ha) using replicate line transects laid from the edges into the interiors. The coffee species cultivated in adjoining plantations was more abundant than the other coffee species inside study fragments, showing a clear decline in stem density from edge (0 m) to interior (250 m), suggesting the influence of propagule pressure of adjoining plantations, coupled with edge effects and seed dispersal by animals. Significant positive correlations of coffee density with canopy cover indicate the potential threat of coffee invasion even in closed canopy rainforests. Stem density of Coffea arabica (150–1,825 stems/ha) was higher in more disturbed fragments, whereas Coffea canephora had spread in disturbed and undisturbed sites achieving much higher densities (6.3–11,486 stems/ha). In addition, a negative relationship between C. canephora and native shrub density indicates its potential detrimental effects on native plants
- Journal Article2009Winter Ecology of the Arunachal Macaque Macaca munzala in Pangchen Valley, Western Arunachal Pradesh, Northeastern IndiaAmerican Journal of Primatology, 71: 939–947Download
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The newly described Arunachal macaque Macaca munzala occurs largely in sub-tropical to temperate environments at elevations of c. 1,800–3,000 m in Arunachal Pradesh, northeastern India. We studied its over-wintering strategy by comparing the diet, ranging, and behavior of a troop of 24 individuals during winter and spring (December 2005 to May 2006) through instantaneous scan sampling (3,002 records, 448 scans, 112 hr of observation). We also monitored the phenology of food plants. The macaques spent more time (41–66%) feeding in the winter than in spring (33–51%), whereas time spent moving and resting was greater in spring. The diet composed largely of plants, with animal matter being eaten rarely. The number of plant species in the diet increased from 18 to 25 whereas food types rose from 18 to 36 from winter to spring, respectively. Although only two species formed 75% of the winter diet, seven species comprised this proportion in spring. Availability of fruits and young leaves increased in spring; the troop moved more and utilized a larger part of its range during this time. Seasonal changes in behavior could be explained by the scarcity of food and the costs of thermoregulation in winter. Our study suggests that the Arunachal macaque inhabits a highly seasonal environment and has an over-wintering strategy that includes subsisting on a high-fiber diet by increasing the time spent feeding, and minimising energy expenditure by reducing the time spent moving.
- Book Chapter2009Tiger reintroduction in India: conservation tool or costly dream?Pages 146-163 in M. Somers and M. Hayward (eds.) Reintroduction of Top-order Predators. Wiley-Blackwell, Oxford, UK.Download
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The tiger (Panthera tigris), like many other large carnivores, has experienced serious declines in its global distribution and abundance. Reintroduction is one of a suite of important conservation tools developed to reverse such declines in a range of species across the globe. Most experience with large- carnivore reintroductions comes from North America, Europe and South Africa, where carnivore declines have ensued from their direct persecution by humans. Once the factors responsible for the original extirpation of a large carnivore have been removed, reintroduction has proved a viable conserva- tion option given the backdrop of low human densities, extensive land avail- ability and the commitment of adequate financial and socio-political support for the reintroduction project. In this chapter, we examine the role of reintro- duction in the conservation of the tiger in India, where the species has been extirpated from many parts of its former range—not only through direct persecution, but also due to prey depletion and habitat loss. Given the complex socio-cultural, economic and political factors that drive habitat loss and prey depletion for the tiger, we review the feasibility of reintroduction as a conser- vation intervention. In the Indian setting, which is characterized by the per- sistence—even aggravation—of conservation threats to tigers, we argue that the prudent course of conservation action is to first invest in effective means of reducing threats to tigers and their habitats before exploring the option of tiger reintroduction.